Allow escape sequences in Constructor/Prototype tokens in PreParserTraits::GetSymbol()

src/preparser.cc

Index: src/preparser.cc
diff --git a/src/preparser.cc b/src/preparser.cc
index 316f129cc12bda987fc9e174319d68f0f36b307d..2978cdda987478361601409b2756c1168fa0dc3e 100644
--- a/src/preparser.cc
+++ b/src/preparser.cc
@@ -59,10 +59,10 @@ PreParserIdentifier PreParserTraits::GetSymbol(Scanner* scanner) {
   if (scanner->UnescapedLiteralMatches("arguments", 9)) {
     return PreParserIdentifier::Arguments();
   }
-  if (scanner->UnescapedLiteralMatches("prototype", 9)) {
+  if (scanner->LiteralMatches("prototype", 9)) {
     return PreParserIdentifier::Prototype();
   }
-  if (scanner->UnescapedLiteralMatches("constructor", 11)) {
+  if (scanner->LiteralMatches("constructor", 11)) {
     return PreParserIdentifier::Constructor();
   }
   return PreParserIdentifier::Default();